Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Balance at beginning of year	$ 733	$ 519	$ 484
Provision for bad debt	15	293	179
Write-offs, net of recoveries	(21)	(40)	(144)
Sale of Molded Fiber business	0	(39)	0
Balance at end of year	$ 727	$ 733	$ 519